Arthur C. Eggleton PC (born September 29, 1943) is a retired Canadian politician who served as the 59th and longest-serving mayor of Toronto from 1980 to 1991.

During Eggleton's time as mayor, he prioritized social and economic development, and the City of Toronto produced a record level of social housing projects for low-income people; 50 acres (20 ha) of new parks; and innovative new responses to the problems of the homeless and emotionally-troubled with projects like Street City, the Singles Housing Opportunities Program, and the Gernsteins Centre.

[4] Eggleton established the Mayor's Committee on Community and Race Relations to help bring about the successful integration of people from different cultural, racial, and ethnic backgrounds.

In 1984, Eggleton assisted the Minister of Environment in opening the Martin Goodman Trail, named for the president and editor-in-chief of the Toronto Star, who died three years previously.

In 1990, Toronto Pride organizers filed a complaint with the Ontario Human Rights Commission after Eggleton did not officially declare the day.

[12] As mayor, Eggleton appeared before a committee of the provincial legislature advocating for an amendment to the Human Rights Code to include sexual orientation in the anti-discrimination clause.

[14] He also improved compensation and benefits for Canadian Forces personnel and their families dedicating roughly $700 million in funding to provide housing and pay under the quality of life program.

[14] In November 1999, Eggleton established a new ministerial advisory board focused on gender integration and employment equity in the Canadian Armed Forces.

[14] During his tenure, Canada continued to contribute to international peacekeeping ventures in the Balkans, the Central African Republic, and the Persian Gulf.

Eggleton at the time defended Canadian participation in the NATO air campaign stating he was convinced it was the right thing to do, citing the effects of the Serb military assault, and the mass graves containing the bodies of ethnic Albanians.

[15] The Canadian Forces Disaster Assistance Response Team (DART) was also deployed to Honduras for the first time to aid Hurricane Mitch relief efforts.

[14] Eggleton pushed for increased procurement of equipment and the continued modernization of the Canadian Armed Forces during his time as Minister for National Defence.

[17] Critics of the government such as Joe Clark then proceeded to point out that in the previous week, the Toronto newspaper the Globe & Mail had run on its frontpage a photo of Canadian soldiers turning over POWs to American troops.

Stephen Harper also criticized Chrétien's decision stating "He's sending the message that he defends his friends, and he sticks by his own positions.

"[19] This happened during the growing leadership turmoil between Prime Minister Jean Chrétien and Paul Martin, who left the cabinet the following week in disputed circumstances.

He was co-opted to the Bureau of Liberal International as a vice president at the 185th Executive Committee in Cape Town, South Africa in November 2010.

[27][28] On the Social Affairs Committee he has been instrumental in studies and reports on such matters as poverty, housing, and homelessness; early learning and child care; autism; the Health Accord; prescription pharmaceuticals; obesity; and dementia.